Performance of a 20-in. photoelectric lens image intensifier tube

Yoichi Asaoka, Makoto Sasaki

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We have evaluated a 20-in. photoelectric lens image intensifier tube (PLI) to be mounted on the spherical focal surface of the Ashra light collectors, where Ashra stands for All-sky Survey High Resolution Air-shower Detector, an unconventional optical collector complex that images air showers produced by very high energy cosmic-ray particles in a 42°-diameter field of view with a resolution of a few arcminutes. The PLI, the worlds largest image intensifier, has a very large effective photocathode area of 20-in. diameter and reduces an image size to less than 1-in. diameter using the electric lens effect. This enables us to use a solid-state imager to take focal surface images in the Ashra light collector. Thus, PLI is a key technology for the Ashra experiment to realize a much lower pixel cost in comparison with other experiments using photomultiplier arrays at the focal surface. In this paper we present the design and performance of the 20-in. PLI.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume647
Issue number1
DOIs
Publication statusPublished - 2011 Aug 11
Externally publishedYes

Fingerprint

image intensifiers
accumulators
Lenses
lenses
cosmic ray showers
Image intensifiers (electron tube)
Photocathodes
Cosmic rays
Photomultipliers
photocathodes
Air
Image sensors
field of view
cosmic rays
Pixels
Experiments
pixels
Detectors
solid state
costs

Keywords

  • Ashra experiment
  • First generation image intensifier tube
  • High energy astrophysics
  • Large sensitive area
  • Photodetector

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

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abstract = "We have evaluated a 20-in. photoelectric lens image intensifier tube (PLI) to be mounted on the spherical focal surface of the Ashra light collectors, where Ashra stands for All-sky Survey High Resolution Air-shower Detector, an unconventional optical collector complex that images air showers produced by very high energy cosmic-ray particles in a 42°-diameter field of view with a resolution of a few arcminutes. The PLI, the worlds largest image intensifier, has a very large effective photocathode area of 20-in. diameter and reduces an image size to less than 1-in. diameter using the electric lens effect. This enables us to use a solid-state imager to take focal surface images in the Ashra light collector. Thus, PLI is a key technology for the Ashra experiment to realize a much lower pixel cost in comparison with other experiments using photomultiplier arrays at the focal surface. In this paper we present the design and performance of the 20-in. PLI.",
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AU - Sasaki, Makoto

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